package com.java.springcloud.alibaba.service;

import org.apache.ibatis.annotations.Param;

import java.math.BigDecimal;

/**
 * @author jingjintao
 * @date 2021/8/20 - 23:05
 **/
public interface AccountService {

    //扣减账户余额
    void decrease(Long userId, BigDecimal money);
}
